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55288671 = 337349409
BaseRepresentation
bin1101001011101…
…0001101011111
310212000221210120
43102322031133
5103123214141
65253010023
71240642314
oct322721537
9125027716
1055288671
1129233219
1216623913
13b5ba6b9
1474b2d0b
154cc1c66
hex34ba35f

55288671 has 8 divisors (see below), whose sum is σ = 73917360. Its totient is φ = 36759552.

The previous prime is 55288661. The next prime is 55288697. The reversal of 55288671 is 17688255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55288671 - 27 = 55288543 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55288621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23586 + ... + 25823.

It is an arithmetic number, because the mean of its divisors is an integer number (9239670).

Almost surely, 255288671 is an apocalyptic number.

55288671 is a deficient number, since it is larger than the sum of its proper divisors (18628689).

55288671 is a wasteful number, since it uses less digits than its factorization.

55288671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49785.

The product of its digits is 134400, while the sum is 42.

The square root of 55288671 is about 7435.6352116010. The cubic root of 55288671 is about 380.9594200413.

The spelling of 55288671 in words is "fifty-five million, two hundred eighty-eight thousand, six hundred seventy-one".

Divisors: 1 3 373 1119 49409 148227 18429557 55288671